Results 31 to 40 of about 9,309 (267)
Advanced Engineering Materials, EarlyView.This perspective reframes additive manufacturing for electrical machines as a qualification‐limited materials and architecture design problem. It links process–structure–property–performance relationships to magnetic, conducting, dielectric, and thermal property windows, highlighting where AM can enable segmented magnetic circuits, permanent magnet ...
Dénes Fodor, Loránd Szabó
wiley +1 more source
Electronic Journal of Differential Equations, 2020 In this work we prove the existence of global weak solutions to a degenerate and strongly coupled parabolic system arising from the transport processes through partially saturated deformable porous materials.
Michal Benes
doaj
Experimental approaches for micromagnetic coercivity analysis of advanced permanent magnet materials
Science and Technology of Advanced Materials, 2021 Although coercivity is one of the fundamental properties of permanent magnets, it has not been well understood. In this paper, micromagnetics and thermal activation magnetization reversal theories are briefly reviewed, and then our recent macroscopic and
Satoshi Okamoto
doaj +1 more source
Advanced Engineering Materials, EarlyView.Additively manufactured AlCrFe2Ni2 with contrasting BCC/B2‐dominant and lamellar FCC + BCC/B2 microstructures exhibits the same pressure‐induced BCC/B2 → HCP transformation. Under laser heating at high pressure, HCP is destabilized, and a cubic BCC/B2 + FCC assemblage is recovered, while the lower‐scan‐speed microstructure transforms at a lower ...
Raimundas Sereika +5 more
wiley +1 more source
上海师范大学学报. 自然科学版, 2017 The hydrogenation-disproportionation-desorption-recombination (HDDR) process is the main technique for the fabrication of anisotropic NdFeB magnetic powder.But the intrinsic coercivity (HC) of HDDR magnetic powder is low.The addition of heavy rare earth ...
Lyu Meng +5 more
doaj +1 more source
Recent advances in SmFe12-based permanent magnets
Science and Technology of Advanced Materials, 2021 To realize a sustainable society, ‘green technology’ with low (or even zero) CO2 emissions is required. A key material in such technology is a permanent magnet because it is utilized for electric-power conversion in several applications including ...
Yukiko Takahashi +2 more
doaj +1 more source
Coercivity and Exchange Bias in Ti-Doped Maghemite Nanoparticles
Magnetochemistry, 2022 Ti-doped maghemite nanoparticles of average crystallite size 12.9 nm were synthesized using the sol–gel method. The XRD profile mainly showed the presence of maghemite phase with very small phases of TiO2 (rutile and anatase).
Venkatesha Narayanaswamy +6 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand +13 more
wiley +1 more source
Atomistic theory of thermally activated magnetization processes in Nd2Fe14B permanent magnet
Science and Technology of Advanced Materials, 2021 To study the temperature dependence of magnetic properties of permanent magnets, methods of treating the thermal fluctuation causing the thermal activation phenomena must be established.
Seiji Miyashita +8 more
doaj +1 more source
Magnetochemistry, 2023 Fe-Cr-based soft magnetic alloy (SMA) monolayer coatings with high saturation magnetization (Ms) above 1.3 T were deposited onto AISI 1010 substrate by co-axial powder feeding plasma transferred arc (PTA) welding, using FeCrBSi self-fluxing powders Fe313,
Yingqing Fu +8 more
doaj +1 more source